Perhaps you should try some spelling variations:
"supply side integration theories." » "supply side integration theorems.", "supply side integrationstheorie 2.", "supply side integration theory.", "supply die integration theories.", "supply de integration theories.", "supply life integration theories."
"supply can integration series." » "supply can integration services.", "supply can interaction series.", "supply can integration server.", "supply chain integration series.", "supply von integration series.", "supply urban integration series.", "supply case integration series.", "supply chai integration series."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply side integration theories.") or ("supply can integration series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply side integration theories.") OR ("supply can integration series.")).
• Removing quotes may allow a broader search: (( supply side integration theories. ) or ( supply can integration series. )).
• Adding a wildcard symbol may retrieve word variants: (("supply side integration theories.") or ("supply can integration series."))*.